Improved brick-machine



UNITED STATES PATENT OFFICE.

ENOCH HALLETT, OF HILLSDALE, MICHIGAN.

IMPROVED BRICK-MACHINE.

To all whom 'it may concern:

Be it known that I, ENOGH HALLETT, of Hillsdale, in the county ofHillsdale and State of Michigan, have invented a new and ImprovedBrick-Machine; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to theaccompanying drawings, forming a part of this specification, in which-Figure l is a side view of my invention; Fig. 2, a longitudinal verticalsection of the same taken in the line .fr Fig. I; Fig. 3, a transversevertical section of the same taken in the line a: x, Fig. 2.

Similar letters of reference indicate like parts.

This invention relates to a new and useful arrangement of levers foroperating the follower by which the clay is pressed into the molds, anda peculiar construction of the clayguides, as hereinafter shown anddescribed, whereby the pressure is rendered uniform over the wholelength of the molds and perfect bricks formed throughout or in all thecompartments of the mold.

The invention also relates to a novel manner of arranging themold-carriage and operating the same in connection with the follower, ashereinafter set forth.

A represents a framing, which may be constructed in any proper manner tosupport the working parts, and B is a shaft passed horizontally in thelower part of the framing A, and having four segments, C C D D, keyed orotherwise secured upon it, the segments D D being considerably smallerthan the segments C O, as shown in Figs. l and 2.

D represents the press-box, and E a chamber leading from the mud-millinto the pressbox. F is a follower or plunger, which works in thepress-box and is connected by uprights a to a horizontal bar, G, theends of which have pendent bars H H attached, the lever end of H H beingconnected by a bar, I. This bar I has two chains, J J, attached to it,said chains passing over pulleys K K at the ends of the framing A, andsecured to the smaller segments D D.

L represents a carriage, which is mounted ou four wheels, M, the latterrunning on two ways, N N, secured to parallel bars O O, the ends ofwhich are framed into head-pieces P I), which may be adjusted higher orlower by means of keys b. (Shown in Fig. 3.) This carriage L isconnected by chains Q Q to the larger segments C C on the shaft B, thechains Q being connected to the outer end of the carriage and the chainsQ connected to the inner end, and said chains attached to opposite sidesof the segments. (See Figs. l and 3.)

The bar G has a lever, B, connected by a fulcrum-pin, c, and this leveris tted at one end in a link, S, attached to the framing A,

the opposite end of said lever, being connected,

by a rod, d, with a hand-lever, T, which is attached to a rod, U,secured to the lower part of the framing A.

V is the brick-mold, constructed in the usual way and fitted in thecarriage L, and W is a guide fitted in the bottom of the press-box D.This guide is ofmetal, of rectangular form, and having cross -bars ewithin it of inverted V form in their transverse section. Thesecrossbars are not at equal distances apart. Those at the center arenearer together than those at the ends, in order to Vadmit of the spacesover the end compartments of the brick-mold being rather larger thanover the center, (see Fig. 2,) in which the larger spaces in the guideare designated by a and the smaller spaces by a. By this arrangement theend compartments in the brick-mold will have an excess of clay overthem, and when the follower F is pressed down the clay will be forcedinto the end compartments of the mold with equally as great a pressureas it is forced into the central compartments, and consequently thebricks will be pressed uniformly throughout.

When the carriage L is drawn inward and the empty mold is under thepress-box D the follower F is pressed or forced down by actuating thelever T, and a very considerable leverage power is obtained, sufficientto cause the follower or plunger to press and compact the clay firmlyinto `all the compartments of the molds. With the ordinary brick-pressesthe end compartments of the mold are not sufficiently pressed inconsequence of the clay adhering to the ends of the press-box, adifficulty fully obviated by having theenlarged spaces a in the guide W,as described.

By the arrangement of the levers R T, connected with the bar Gr of thefollower F, as

shown, a lgood leverage power is obtained with but little loss byfriction, andk the parts.

Work smoothly and Well.

The brick-mold is moved underneath the press-box and out from underneaththe same by operating the carriage'L; which is done by turning the shaftB first in one direction and then in the other, the follower F beingraised simultaneously into the outward movement of the carriage by meansof the chains J J and segments D D, and the carriage L being moved bythe chains Q Q and segments C O.

ating the mold-carriage L and follower F, as set forth.

ENOGH HALLETT.

Witnesses: l

111K. PENNELL, DANL. L. PRATT.

